In each template file, each avatar body includes extra head mesh objects and face armature bones. Separating these objects within the templates allow you to make easier changes to each of these separate objects, as demonstrated during the texturing step.
The extra head mesh objects are the following:
The extra head bone children are the following and may differ between templates:
While these extra objects exist to aid the creation and modification process, leaving them in your project on final export will cause validation issues when uploading these assets to the Marketplace.